﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace u盘和硬盘
{
    abstract class Disk
    {
        private string _brand;

        public string Brand { get => _brand; set => _brand = value; }

        public Disk(string brand)
        {
            this.Brand = brand;
        }
        public abstract void Info();

    }
}
